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<h1>Fretboard Shape</h1>

<h2>Width</h2>

<p>Width at nut: 50 to 58 mm.</p>
<p>Width at 12th fret: 62 mm.</p>

<h2>Thickness</h2>

<p>???</p>

<p><a href="http://www.classicalguitardelcamp.com/viewtopic.php?f=11&t=22484&start=0#p211111">Bernabe E5</a> thins by 1 mm towards the soundhole.</p>

<p>A thickness taper may be needed when the string tension presses the soundboard down, reducing the dome height at the bridge position. This effect will reduce the string action at fret 12. On the other hand, the string tension will pull the neck slightly forward, increasing the string action at the 12th fret. Unfortunately, the effects can only be measured precisely with a fully assembled fretboard, with frets installed.</p>

<h2>Neck Relief</h2>

<p><a href="http://www.classicalguitardelcamp.com/viewtopic.php?f=11&t=22484&start=0#p210929">Manuel Rodriguez model E exotic</a> has a neck relief of 0.20 mm. A neck relief of 0.20 to 0.25 mm is considered usual for a classical guitar.</p>

<p>Hill Guitars: 0.08 to 0.25 mm.</p>

<p>The bass side may need more relief than the treble side. This can be <a href="http://www.classicalguitardelcamp.com/viewtopic.php?f=11&t=22484&start=0#p211499">planed into the fingerboard</a> in order to take stress away from the saddle on the bass side.</p>

<p>The neck relief may be partly built into the fingerboard. Another part is contributed by the neck as an effect of the string tension.</p>

<h2>String Action</h2>

<p>3.5 mm at string 6 fret 12, 3.0 mm at string 1 fret 12.</p>
<p>Hill Guitars: 12th fret, string 6: 3.2 mm, string 1: 2.7 mm</p>


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